How has Megan Fox transformed her look?

How has Megan Fox transformed her look?

If you look at these pictures taken 2 years ago her face and body look completely different. What has she done?

http://megan-fox.net/gallery/displayimage.php?album=topn&cat=10&pos=1

http://megan-fox.net/gallery/displayimage.php?album=topn&cat=10&pos=0